vulnerability
WordPress Plugin: instant-css: CVE-2023-38483: Missing Authorization
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:S/C:N/I:P/A:P) | Jul 24, 2023 | May 15, 2025 | May 15, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:S/C:N/I:P/A:P)
Published
Jul 24, 2023
Added
May 15, 2025
Modified
May 15, 2025
Description
The Instant CSS plugin for WordPress is vulnerable to unauthorized access and modification of data due to missing capability checks on several functions called via AJAX actions in the ~/classes/class.instantcss_ajax.php file in versions up to, and including, 1.1.4. This makes it possible for authenticated attackers, with subscriber-level access and above, to perform a wide variety of actions such as retrieving css, theme, and minify data, along with updating the options for those. The unprotected AJAX actions present can be used to exploit a site via Cross-Site Scripting as well.
Solution
instant-css-plugin-cve-2023-38483
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